package thread;


import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class SyncDemo4 {
    public static void main(String[] args) {
        List<Integer> l = Collections.synchronizedList(new ArrayList<Integer>());
        Thread t1 = new Thread(){
            public void run(){
                for(int i = 0; i < 1000; i++){
                    l.add(i);
                }
            }
        };
        Thread t2 = new Thread(){
            public void run(){
                for(int i = 1000; i < 2000; i++){
                    l.add(i);
                }
            }
        };
        t1.start();
        t2.start();

        try {
            Thread.sleep(50);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(l.size());
        System.out.println(l);
    }
}
